Sodium carbonate is also used in the metallurgy of a large number of non-ferrous metals:

• Oxidizing calcination of chrome ore;
• Precipitation of cobalt carbonate;
• Obtaining the solubility of sodium tungstate and sodium vanadate in water;
• Desulfurization of nickel cast irons;
• Recycling of the lead from discarded batteries and industrial dusts;
• Formation of a protective slag on baths of metal infusion during refining;
• Recycling of aluminium;
• Recycling of zinc.